Oil burner



Jan. 28, 1930. F, L, AMMER 1,744,962

OIL BURNER Filed June 9, 1928 2 Sheets-Sheet 1 Jan. 28, 1930. F. L. HAMMER OIL BURNER 2 Sheets-Sheet 2 Filed June 9, 1928 Patented jun. 28, 1930 PATENT OFFICE FORBESTEB L. HAMMER, OF BRANFORD, CONNECTICUT OIL BURNER Application filed June 9, 1928. Serial No. 284,224.

My invention relates to oil burners, and particularly to oil burners adapted for use in connection with furnaces for heating houses and other buildings, although it will be readily understood from the nature of the invention hereinafter disclosed that it is not limited to oil burners which are used for these purposes but has'a wider scope.

It is well known that it is substantially im possible to maintainperfect combustion in oil burners, and that as a result a great deal of carbon collects therein requiring that the burner be cleaned periodically in order to be maintained in operation. It is, in general, an object of the present invention to provide an arrangement and means in an oil burner wherein the several parts of the burner in or on which carbon isapt to collect may be readily accessible for the purpose of cleaning or adjusting them. Z

In my co-pending applications Nos. 185,616 and 193,624, filed April 21st,,1927 and May 23rd, 1927, respectively, I have described and claimed an oil burner in which fuel oil and air,

in a properly proportioned mixture, are fed into a fire box where they are consumed. In these applications, there is shown a casing adapted to be inserted into an opening in the fire box or the like and carrying therein air and oil nozzles for the introduction of the combustible mixture. In a specific aspect, it is an object of the present invention to bring ,about an arrangement wherein the several parts of the burner of my prior applications may become more readily accessible for clean ing, adjustments and repairs.

A further object of the invention. resides in an arrangement in an oil burner in which the several parts which are apt to become coated with carbon or toneed repairing or adjusting, may be readily disassembled with a minimum amount of disassembling of the remaining parts. I

To these and other ends, the invention consists in the novel features and combination of parts to be hereinafter described and claimed.

oil burner constructed in accordance with my mvention;

Fig. 2 is a plan view ofthe same;

Fig. 3 is a sectional view along line 3-3. of Fig. 2; and

Fig. 4 is a sectional view along line 44: of Fig. 3.

I will now refer to the drawings in which I have illustrated my invention by showing a preferred embodimentof the same, and in which I have shown my improvements when used in connection with the oil burners of my copending applications above referred to. It will be understood that certain of the features illustrated are described and claimed in the copending applications and will not be described herein in detail except as may become necessary to a clear understanding of the present invention and its mode of opera- 7 tion.

The reference numeral 5 indicates, in general, my improved oil burner which may be supported on a floor by a plurality of legs of which two, indicated by reference numerals 6 and 7, are shown. The burner comprises,

enerally speaking, a low pressure volume an or pump 8, and a high pressure fan or pump 9, which may be driven according to the arrangement in my copending applications, or in any usual or preferred manner, high pressure fan 9 delivering air to the mixing or atomizing nozzle 10 by means of connections 11 and 12 which are secured together by suitable means, such as bolt 13, the fuel oil being pumped or fed by gravity to thenozzle 10 through pipe 14.

The fan 8 is provided with an outlet 15 provided with a flanged end 16, towhich is secured the similarly flanged end 17 of burner housing 18, which extends into an opening vided with a number of spirally shaped blades between which the air from the volume fan passes, and by which it is given a whirlingor rotating motion. A sleeve 23 surrounds the deflector 22, sleeve 23 being separated along ahorizontally and axially disposedplane into two parts 24 and 25, of which the latter is secured in housing 18 b means of laterally extending lugs 26 and 2 into which screws 28 and 29 pass through the walls of housing 5 18. Lugs 26 and 27 are provided with open- 'ings 30 and 31 in which are received flanges 32 and 33, of sleeve part 24, the ends of the screws 28 and 29 bearin against the flanges to hold them in place. gnition terminals or spark points 34 pass through deflector 22 to a oint opposite t e end of nozzle 10 and may be connected in any preferred manner to a suitable source of energy.

The burner housing 18 is preferably rectangular in cross-section and is providedin its up r wall 35 with an opening 36 of a s1ze but sllghtly less than the size of the upper wall 35, opening 36 being normally closed by a cover plate 37, having mounted thereon a protectostat '38, the details of which are not necessary to an understanding of the present invention, it being suflicient to state that this device is operated by the heat of the flame of the burning fuel to cut ofi the ignition when the fuel isonce ignited, and to turn on the ignition when for any reason the flame. goes out. The protectostat 38 is provided with a flexible connection 38' leading to the ignition system.

The side wall. 39 of housing 18 is provided with an o ening of substantial size which is opposite the connection between the parts 11 and 12 of the high pressure lineand oppposite the union 40 in line 14, the opening being closed by a cover 41, covers 37 and 41 being hingedly conhected to the housin 18, at 42 and43, respectively, and at their ad acent ends are clamped together by means of clamp screw 44 and wing nut 45.

After the burner has been in operation for such a length of time that it becomes desirable to clean the carbon around the nozzle, or it becomes necessary to gain access to the burner partsfor any other reason, the wing nut 45 may be loosened and covers 37 and 41 turned back, and sleeve part 24 withdrawn through opening 36, whereupon the parts of the burner become accessible for cleaning, or other purposes. In case it becomes necessary to withdraw or disassemble any of the parts of the burner, the bolt 13 and union 40 may be unscrewed and the spark point 34 detac ed from its connection by means of nut 46 and the nozzle and associated parts withdrawn through opening 36.

Upon the cleaning or repairing of the nozzle, the several parts may be replaced and the covers 37 and 41 again closed, whereupon the burner ma be again placed in operation. From the oregomg description of the nature and mode of operation of my invenit will be readily understood that I have ed a burner in which the parts become cessible for cleaning, and for other thout dismantling the burner,

and in which, in case the nozzle or its associated parts must be withdrawn for any purpose, this may be accomplished with a minimum amount of disassembling of the burner mechanism.

It will be readily understood that although I have shown and described my invention in connection with aparticular form of burner, the same is not limited thereto but I may carry out my invention-in connection with other forms of burner, and thus while I have shown a preferred embodiment of my invention, it is to -be understood that the same is not to be limited to all the details shown, but is capable of modification and variation within the spirit of the invention and the scope of the appended claims.

What I claim is:

1. In an oil burner, an atomizing nozzle, a deflector sleeve surrounding said nozzle, said sleeve comprising a plurality of sections separable along a substantially horizontally and axially disposed plane.

-' 2. In an oil burner, a burner housin an atomizing nozzle in said housing, a seeve surrounding said nozzle, said sleeve comprising a plurality of separable parts and said housing being provided with an opening through which the parts of said sleeve may be withdrawn.

3. In an oil burner, a burner housing, an atomizing nozzle in said housing, a sleeve surrounding said nozzle, said sleeve comprising a plurality of separable parts, and said llOllSiIl" bein provided with an opening through whic the parts of said sleeve may be withdrawn, and a cover for said opening.

4. In an oilburner, a burner housing, an atomizin nozzle in said housing, a sleeve surroundinv said nozzle, said sleeve comprising a plurality of separable parts, one of said parts being arranged above said nozzle, and said housing being provided with an opening. through which the said part may be withdrawn, the nozzle becoming accessible through said opening upon the withdrawal of said art.

5-. 11 an oil burner, a burner housing, an atomizing nozzle in said housing, a sleeve surrounding said nozzle, saidsleeve being divided along a substantially horizontally and axially directed plane into a-plurality of parts, one of said parts being secured to the burner housing, the said housing being provided with an o enin through which the other part may e wit drawn.

6. In an oil burner, a burner housin' an atomizin nozzle in said housing, a s eeve surroun mg said nozzle, said sleeve being divided along a substantially horizontally and axially directed plane into a plurality of parts, the lowermost of said parts being secured to the burner housing, said housin being provided with an opening throu which the upper part of the sleeve may be withdrawn, and common means for securing one of said parts to the burner housing and the two parts together.

7 In an oil burner, a burner housin an atomizing nozzle in. said housing, a s eeve surroundingsaiol nozzle, said sleeve being divided along a. substantially horizontally and axially directed plane into upper and v lower parts, the lower part being secured to the burner housing, said housing bein provided with an opening through whic the upper part of the sleeve may be withdrawn common means for securing one of said parts to the burner housing and the two parts together, and a. cover for said opening.

In witness whereof, I have hereunto set my hand, this 4th day of June, 1928.

FORRESTER L. HAMMER 

